Pneumatic riveting hammer



FIG. 1 is a perspective view of a pneumatic riveting hammer, showing our new design;

FIG. 2 is a left side elevational view thereof, the right side being a mirror image thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a rear elevational view thereof. 

The ornamental design for a pneumatic riveting hammer, as shown and described. 